28707979 (number)

28707979 is an odd 8-digits composite number following 28707978 and preceding 28707980. In scientific notation, it is written as 2.8707979 × 10^7. The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors. There are 27272256 positive integers (up to 28707979) that are relatively prime to 28707979.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred seven thousand nine hundred seventy-nine

Notation

Scientific notation 2.8707979 × 10^7
Engineering notation 2.8707979 × 10^6

Prime Factorization of 28707979

Prime Factorization 23 × 149 × 8377

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28707979
Product of the distinct prime numbers

The prime factorization of 28707979 is 23 × 149 × 8377. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28707979)

Multiplication

n×y
n×2 57415958
n×3 86123937
n×4 114831916
n×5 143539895

Division

n÷y
n÷2 14353989.5
n÷3 9569326.3333333
n÷3 7176994.75
n÷5 5741595.8

Exponentiation

ny
n2 824148058264441
n3 2.3659625149546E+22
n4 6.7922002194105E+29
n5 1.9499034126263E+37

Nth Root

y√n
2√n 5357.9827360677
3√n 306.19695907734
4√n 73.19824271161
5√n 31.017052416697

Divisors of 28707979

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28707978
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28707979 can be divided by 8 positive divisors. The sum of these divisors (counting 28707979) is 1, the average is 0.125.

Base conversion 28707979

Base System Value
2 Binary 1101101100000110010001011
3 Ternary 2000000111221111
4 Quaternary 1231200302023
5 Quinary 24322123404
6 Senary 2503151151
8 Octal 155406213
10 Decimal 28707979
12 Duodecimal 97454b7
16 Hexadecimal 1b60c8b
20 Vigesimal 8j89ij
36 Base36 h3b7v

Cryptographic Hash Functions

md5 032881b6ee0d19ba86e4aa293491a039
sha1 cdbae538ab11141a1ba32823ecf0640d9b4e04f8
sha256 95309a4b039710d216bd5956267d9530f62212fb28409971483ab6c058381641
sha512 6fd62037196c17f4cc26d9e1651f84ca8440e544b69b74dd66f1850fe51066f12bb9a97968d049f41907995f863d8357e59bfb19cc6d9a7ce136a4425ee0623b
ripemd-160 d6cc12f15c35b9a0ed3c162898f5c9aa0a2d84f0

28707979 as geometric shapes

Circle

Radius = n
Diameter 57415958
Circumference 180377551.85162
Area 2.5891374853139E+15

Sphere

Radius = n
Volume 9.9105206075337E+22
Surface area 1.0356549941255E+16
Circumference 180377551.85162

Square

Length = n
Perimeter 114831916
Area 824148058264441
Diagonal 40599213.250122

Cube

Length = n
Surface area 4944888349586646
Volume 2.3659625149546E+22
Space diagonal 49723678.21062

Equilateral Triangle

Length = n
Perimeter 86123937
Area 3.5686657746831E+14
Altitude 24861839.10531

Triangular Pyramid

Length = n
Surface area 3.5686657746831E+14
Volume 2.7883135639293E+21
Height 13533071.083374